Fosi Audio BT30A User Manual

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Thank you very much for choosing our products!Please read

this manual carefully before using the product.

Front & back surface interface of volume adjustment&mechanical

switch version

① .............................. POWER NO/OFF

② .............................. LED INDICATOR LIGHT

③ .............................. Bass Knob （increase clockwise and decrease counterclockwise）

④ .............................. Treble Knob （increase clockwise and decrease counterclockwise）

⑤ .............................. VOL+/- (increase clockwise and decrease counterclockwise)

⑥ .............................. Bluetooth antenna (bluetooth is optional)

⑦ .............................. BT/RCA Option switch

⑧ .............................. Input interface of audio (Such as CD, DAC decoder, mobile phone,

TV, etc., red to right channel input, white to left channel input)

⑨ .............................. Speaker Output (red to positive, black to negative, L to leftspeaker

and R to rightspeaker,SUB to subwoofer)

⑩ .............................. Power interface (DC power shall not exceed 24V)

Page 1 Thank you very much for choosing our products!Please read this manual carefully before using the product. Front & back surface interface of volume adjustment&mechanical switch version ① ………………………… POWER NO/OFF ② ………………………… LED INDICATOR LIGHT ③ ………………………… Bass Knob （increase clockwise and decrease counterclockwise） ④...
Page 2 Operation Steps: 1. Make sure the VOL buttonto the minimum. 2. Connect the speakers according to the interface instruction of the rear surface, and pay attention to distinguish positive and negative. 3. Connect the sound source that needs to be used（Use bluetooth transmission to refer to the next step）...
Page 3 Q: Why do loudspeakers make a lot of electric noise? A: if you are not using the original factory standard power supply, please replace the power supply before testing.Many power supply in the market have large interference coefficient, which will cause a lot of current sound.